Question

Please I need help with this algebra problem

With the 3 equations
f1(x)=0
f2(x)=1/8(x+16)^2-98
f3(x)=2x+24

Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions)

I do not know how does everyone get this answer g(x) = f2(x)-f3(x)
= (1/8(x+16)^2-98)-(2x+24)
= 1/8 x^2 + 2x - 90

Answer 1

After seeing how you responded to Steve when he helped you with this question ....

http://www.jiskha.com/display.cgi?id=1479505703

Answer 2

The g(x) I suggested was a last-ditch effort to come up with <i>some</i> function using f1,f2,f3. You repeatedly refused to specify what you meant when you said

<u>Determine an equation for this function</u>

"this function" indicates that there is some function you want to create using f1,f2,f3. But you never say what it is; I made one up, just to illustrate how to use them. If you have some other function, we'll be happy to help with its derivation.

Just as a final effort to be helpful, despite your intransigence,

(1/8(x+16)^2-98)-(2x+24)
= 1/8 (x^2+32x+256) - 98 - 2x - 24
= 1/8 x^2 + 4x + 32 - 98 - 2x - 24
= 1/8 x^2 + 2x + 90

You really need to do <i>some</i> of the work on your own, rather than just sulking when the entire solution is not provided.

Answer 3

Did Steve's additional explanation help you?